Learn More
Processor architects usually design uniprocessor or chip multiprocessor (CMP) by using a platform-based approach. One of the major challenges in this approach is to explore the exponential-size design space composed of many tunable and interacting architectural parameters. An exhaustive search of the design space is prohibitive because of the expensive(More)
A successive interference cancellation (SIC) algorithm based on breadth-first search (BFS) is developed to achieve a soft-input soft-output detector via the tree structure of the MIMO system model in this paper. Instead of visiting all nodes of the tree, the proposed BFS-SIC algorithm only browses and extends those paths with large metrics. If paths are(More)
This paper presents an ASP (application specific processor) with 512-bit SIMD (Single Instruction Multiple Data) and 192-bit VLIW (Very Long Instruction Word) architecture optimized for wireless baseband processing. It employs optimized architecture and address generation unit to accelerate the kernel algorithms. Based on the ASP, a multi-core baseband(More)
“Small Cell” is regarded as the solution to optimize 4G wireless networks with improved coverage and capacity and expected to be deploy in a large number. To meet performance requirements and special constraints on the cost and size, we design a heterogeneous multi-processor SoC for small cell base station, which is composed of ASP(More)
An efficient hardware-optimized Physical Random Access Channel (PRACH) baseband signal generation algorithm and its ASIC implementation in the LTE user equipment (UE) transmitter are presented in this paper. A simplified DFT of the Zadoff-Chu (ZC) sequence as well as a phase computation are applied to the prime size DFT of the PRACH preamble and the large(More)
Time and frequency synchronization is very critical in LTE downlink. This paper proposed a joint time and frequency synchronization algorithm to estimate the carrier frequency offset (CFO), including the integer frequency offset (IFO) and the fractional frequency offset (FFO), and the start position of a radio frame. The FFO is first estimated by maximum(More)
In statistical signal processing, the sequential Monte Carlo (SMC) method is powerful and can approach the theoretical optima. However, its computational complexity is usually very high, especially in multiple-input multiple-output (MIMO) systems. This paper presents a new low-complexity SMC (LC-SMC) algorithm for blind detection in MIMO systems, the main(More)